Pump.



No. 655,037. Patented July 3|, I900.

F. M.'WHEELER.

PUMP.

(Application filed Oct. 91, 1897.) (No Model.)

:r STATES: PAT ENT @FEIOE.

EEEDERI K MERIAM WHEELER, OF MONTcLAIR, NEW JERSEY, ASSIGNOR TO THE GEO. F. BLAKE MANUFACTURING COMPANY, OF NEW YORK, N. Y;

home.

$PECIFICATION forming part 91 Letters i atent Nd. 655,037, dated. m 31, 1900.

Application filed October 21,1897. Serial No. 655,932. (No model.)

To aZZ whom it may concern: pump that is not in use, so that the latter may Be it known that I, FREDERICK MERIAM be undergoing repairs, if necessary, or the WHEELER, a citizen of the United States, re: pump with the smaller steamcylinder can be siding at Montclair, in the, county of Essex run to deliver a less quantity of water or at '5 5 and State of New J ei'sey, have invented an a less pressure than the pump having the Improvement in Pumps,0t' which the follow larger steam-cylinder and from which water ing is a specification. I can be discharged under ahigher pressure and v Pumps have heretofore been made in which for a greater distance in consequence of the an engine has been directly connected with steam cylinder being larger, the pressure of IO thejpiston-rod of the pump and the engine has steam itself not necessarily being increased. been either simple or compound to work ex- By these arrangements one pump can beem pansively, and duplex pumping-engines have ployed for keeping a condenser clear of water also been made in which one engine moves the or for pumping waterinto the boiler, while valves of the other engine, so as to cause them the other pump is used for freeing the vessel 15 to work in harmony. Where the engine is from leakage or for directing water upon a compound, so that the steam from the highfire,orboth pumps can be used with the steampressure cylinder works eXpansively in the cylinders Working expansively and economlarger and lower pressure-cylinder, the directically for the ordinary purpose of feeding the acting pump is generally run to the best ad boile'r or for freeing the condenser or for cir- 20 vantage and with the best economy; but it culating water through the condenser or for sometimes happens that one pump may be freeing the vessel from leakage or for any required for one purpose and another pump other purpose, thus adapting the pump withfor another purpose and that they are most out change in its structure to the various conadvantageously run entirely separate for a (litions that may exist or the duties to be per- 2 5 greater or less length of time, and sometimes formed.

a greater duty is required from one pump The diagrammaticelevation, Figure l,illusthan from another, and an emergency may trates the general arrangements of the parts arise Where the Water from one pump has to of the pump,and the diagrammatic plan view, be ejected with much more force at one time Fig. 2, shows the relative positions of the 0 than at another. These conditions arise pipes.

largely upon vessels and in emergencies: The pumps H and H are to be of any desuch, for instance, as the springing of a leak sired character, and I employ the suction or or the discovery of a fire or the breaking down inlet pipe Lthat is common to the two pumps, of one of the pumps-and the object of my and the suctions or inlets I I are provided, 3 5 invention is to provide for these conditions. the suction I being for the pump H and the In the present instance I make use of two suction l for the pump H, and valves 1 2 3 pumps and two steam-cylinders. One steamat are provided,so that the suction can be from cylinder is larger than the other and they either of the pipes or either suction can be are connected to the respective pumps, and closed. 40 I combine with these connecting-pipes and The discharge-pipe K is common to the two valves, as hereinafter described, whereby the pumps, and by the valves or cocks 5 and 6 steam under high pressure can be admitted either one or both discharges may be closed, into the smaller steamcylinder, worked exandthe discharge K may be usedwhen the pansively in the larger cylinder, and thence valve 7 is open, or the discharge K may be 5 5 passed to the exhaust, or the steam can be used when the valve 8 is open, and air vesadmitted directly into both of the cylinders, sels L L are usually provided. so as to work the pumps with their maximum The connecting-rods N N extend from the capacity and pass separately to the exhaust, plungers or pistons of the respective pumps or the steam can be cut off from either one to the pistons ofthe steam-cylinders M M, mo 50 pump or the other, so that the pump that is the steam-cylinder M being for high pressure in use can be run entirely independent of the and smaller than the cylinder M, which is especially adapted to receiving the expanding steam, and live steam isadmitted by the pipe.

0, and the exhaust-pipe is represented at P.

The cocks or valves A and .D are provided in the steam-pipes, and the cooks or valves B, O, and E are provided in the exhausts, so that the steam maybe admitted directly to-the cylinder :1: through the cock A and exhaust throughthe cock B or the cock 0. In the latter instance the exhaust will go to the ex; haust-pipe P; but when G is closed the exhaust from M will go by the pipe and cook B to the cylinder M and thence by the exhaustcock E to the exhaust P. In this instance the steam-valve -D is closed; but when the valve B is closed and the valve C is open the steam may go direct through the valve D to the, chest of the cylinder M, so that in this latter instance the live steam is acting in the engine M and in the engine M. I have found that when the valve B is open and the valves. 0 and D- closed and the valve E open the steam at a high pressure acts in the cylinder M and thence exhausts by the valve B and acts in the larger engine M ex pansively, escaping by the valve E to the exhaust P, and the two engines will move synchronously or in harmony, because as soon as the valve of the engine M is changed, so as to shut off the exhaust from one end and admit steam, the pause in the one engine will insure a corresponding action in the other engine, so that the engines will run in harmony and the expansive action in one will not only be due to the expansion of the -steam,but to the driving out of the steam by the movement of the piston in an opposite direction, and for this reason it is unnecessary to have an intermediate steam-chamber and consequent loss by condensation orheat of the steam.

By the aforesaid improvement the two cylinders can work as a compound engine, or either engine can be run without reference to the Ol' her, the engine with the larger cylinder exerting much more power when run with live steam than the engine with the smaller cylinder, and one engine or pump can be undergoing repair when the other one is in operation, and the water from either pump can be directed in whatever manner is desired.

By the arrangements hereinbefore described it is possible to employ one pumpfor keeping the condenser clear of wateror for pumping water into the boiler, while the other and companion pump may be employed for freeing the vessel from leakage or for directing water for putting out fire. both pumps can be simultaneously'used with the steam-cylinders working expansively and also economically for: ordinaryflpurposes of feeding h o er r' r e ng t e: c ndenser .Of

the water of condensation or for circulating water through the condenser or for freeing the vessel from leakage; also, for any other purpose that pumps are usually adapted to. All theseusesare possible without changing the structure of the pump, thus employinga pump of compact dimensions for the various and numerous duties devolving upon such an apparatus. y I claim as my inx'entionfl 1. The combination withthe steam -cylin ders, of pumps operativelyconnected to the steam-cylinders, inlet water-pipes and exit water-pipes to each pn'mp and'v'alvesin the said inlet and exit pipeswhereby the. pumps may be operated simultaneously yet independently of one another, or either-one be operated alone, an inlet-pipe and branches con-v nectin g bothpumpscylinderaan exit-pipe and branches also connecting both pumpcylinders and valves in said branch pipes whereby both pumps: may be coupled together. and work in unison, substantially as specified.

2. The combination with the steamL-cylinders, of pumps operatively connected to the steam-cylinders, inlet water=pipes andexit water-pipes to. each pump and valves in the Furthermore, 

